🔗 Connect with Confidence! Zinc plated with CR III to ensure resistance against rust and wear. Crafted from high-quality carbon steel for long-lasting performance. Each coupler weighs only 322 grams, making it easy to handle and store. Quick release design for seamless transitions between tools. Perfectly suited for air tools, compressors, and water fed pole systems. Corrosion Resistant 3/8" BSP Threads Carbon Steel Material This 6-piece Quick Release EURO Compressed Air Line Coupler Connector Fitting set features robust carbon steel construction with 3/8" BSP threads, ensuring compatibility with a variety of air tools and systems. The zinc plating provides superior corrosion resistance, making it a reliable choice for both professional and DIY applications.